Double-current generator.



P. H. WADE & W. E. BAUERLE.

DOUBLE CURRENT. GENERATOR.

APPLICATION FILED APR. 24, 1912.

Patented; May 2%, 1

77MER r fl 1) 9 m. w I I 1 UNITED STAT 1 1 S -PA TENT OFFICE. v.

FRANK H. WADE, or 61110450, Ann WALTER BAUERLE, or" OAK PARK, ILLINI S.-

' nouiann-onn'nnnr Gn EnAToR.

To all wiiomgfimjay concern Chicago and Oak Park, respectively, county of Cook, and Stateof Illinois, have inventedcert-ain "newand useful Improvements in vert the usual singlefph ase generator into a;

- following is a specification.

Double-'Cu rent Generators, of which the The' inain objects of thi s invention are to provide an improved device adapted to condouble current generator, and "to provide an improved. device adaptedto be used with the usual motor driven single phase magnetofor charging a storage battery orrestoring a dry battery, and maintaining either at their maximum M. F.; to provide an improved arrangement of the cir- 'cuits connectingsaid device, magneto and battery, whereby said magneto may be used for-operating an ignition system, or charging said battery, and whereby said battery may be used for the purpose of operating said ignition system or lamps, or'both; to

provide a device of this kind which will an tomatically deliver the peak current wave in -a constant directlon. independently of the direction of rotation ofthe magneto; to '80 provide improved .means' which will automatically cut, in and cut out at the proper E; M. F. values of the peak of the current I wa'ye; and to provide an improved arrange- -circuit com Jens-ates the maximum -'curre nt- Ivalues so as to be substantially independent ment of the deviceand circuit by which the self inductionof the single phase magneto of speed, frequency and voltage of. the

vmagneto.

An .illustrativebmbodiment of th s invention is shown in the accompanying draw- "ings in which Figure 1 1s a diagrammatm VIEW of a circurt arrangement and a] rectlfylng device constructed according to this invention, and

their I relative connection-{to and operation by a single phase magneto. Fig. 2 is an en'- larged. detail of the rec tifyingdevice. Fig.

'3 isanc end elevation, partly. sectional, of the same; taken on'the linef A A of Fig. 2.

Fig.4 is. a diagramof a-cycle ofxthe current wave.;-.-

shown the drawings, the magnetol is of, usual construction comprising a shaft 2 on'which ismounted Specification of Letters Patent.

[ one. studto another.

connected together electrically by the con-H ductor 11, and are-also adaptedto be electrically connected with' a metallic segment Patented May 26, 1914.

Application ii1ed Ap'ri124, 1912 sen- 51 at. 692,892.

the coil .or winding is grounded to, the frame as diagrammatically represented at 4. The

opposite end of v the winding extends 'throug'hia longitudinal bore in the shaft 2 protruding outwardly from the end thereof 1 and forming the terminal 5 against which bears the spring contact or brush (3., This end of the W1re'1s,.of course, insulated from vtheshaft and the brush 6 takes ojflf'an alternating current fromthe rotor. The shaft 2 is extended and has loosely mounted there'- on a member or disk 7, preferably of-fiber,

which is adapted to-be rotated with the shaft by means of an: arm or lug 8 carriedby 'tl1e' shaft-.andadapted to engage one or the other of the shouldersor studs 9 and 10.

The studs 9 and 10 are symmetrically arranged'on one side of'the [disk 7, being spaced apart angular-1y; so that the arnr8 travels through 180 degrees in moving from The studs 9 and 10 are 1:2 carried ontheperiphery of the disk, by

means of an; automatic switch; or cut out; I

Theautomatic-switch or cut out comprises 3 a spring arm 13 secured in'thereces's 1 4 and electrically connected to the segment 12, by-

the bolt 15,- and is adapted to engage the contact 1'6 connected to the stud The spring 13 normally oocupies th'e position as certain; predetermined value;

exceeds a shown iniFig. 3 until the speed-of the disk when, due to-centfifu'gal action the end offs;

the spring'lB which'jjslerv es as the contact 17, is tlnfown outwardly against the contact 16. A conductor 18 istapped in on the wind- --ing 3 in shunt withthe conductor, 5'and'is connected to the contactsl9 and 20 carried on respectively opposite sides of the arm 8 and arranged to abut against the studs Qand 10 for completing the circuitfrom'said studs to thema-gneto WIIICllIIg XVlTQU the-magneto arranged to-bear upon the periphery of the engage the respective-stud .9 or 10', and the speed of the disk is sufiicient to cause the V engagement of the contacts 16 and 17.

,7 A storage battery 22l1as one of its terminails connected by a circuit to the brush 21. the other terminal being connected to a ground 24' by the c1rcu1t25. An ignition the 'sin'glelcoil or winding 3'. One endof system comprising; the usual spark 26 is rotated in either direction. "A brush 91 is v circuits 31 and 33.

Q mamas and timer 27 is connected by the circuit 28 to the battery 22 and to the circuit 23 leading from the brush 21, the opposite end. of the ignition circuit being groui'ided as indicated at 29. Lamps 30 are connected by a circuit 31 to a double throw, singleymle,

switch 32 by which they may be connected so indicated at 36 and 37 respectively. A single pole, single throw switch 38 may be placed in the circuit 28 so that the circuit can be opened if found expedient.

The operation of the device is as follows:

The magneto l is operated in the usual man-- ner and current is taken'off therefrom by the brush 6 for operating'the lamps 30, provided the switch 32"is shifted to connect the If the shaft 2 is rotated in a direction toward the left of Fig. 3, the arm 8 is shifted to abut against the stud 10 which brings the contact 20 carried by the arm 8 intoelectrical engagementwith said stud thereby completing the circuit to the armature winding 3 through the conductor 18. As the speed of the armature increases and exceeds a certain predetermined value, sufficient for the winding to produce a voltage greater than the voltage of thebattery 22, the spring 13 is thrown outwardly through centrifugal action to cause engagement of the contacts 16 and 17. The engagement of the contacts 16 and 17 brings the segment 12 into electrical connection with the stud 10, whereupon current is intermittently taken oif'from the armature winding. The arrangement of the segment 12 and brush 2l'is such that the current will 7 be taken off during a certain predetermined portion of the peak of the wave current, as indicated by the line 36 of Fig. 4. Ourrent thus taken ofi'is conducted from the brush 21 by means of circuit 23 to the bat tery 22 which it charges so as to restore its E. M. F. or maintain the battery at its maximum E. M. F. If'the specd of the armature falls below a value which would cause the armature to produce a lower voltage than the voltage of the battery, the spring 13 opens the circuit leading from the armature to the battery so that current from the battery will not travel to the armature. If the direction of rotation of the armature is reversed, the disk 7 remains stationary during an angular movement of 180 degrees of the arm 8, so that when the contact 19 engages the stud 9 the device will take off current from the armature in the same manner as just described, the circuit from the stud 9 being completed through the conductor 11 to the stud 10. If it is de sired to operate the lamps 30 by the battery 22, the switch 32 may be thrown to complete the circuits 3i and 34. ltwill be apparent to those skilled in the art that the same result can be accomplished by the use of a plurality of segments instead of a single seginentas herein described.

Although but one specific embodiment of this invention has been herein shown and described, it will be understood that numerous altered or omitted without departing from the spirit of this invention as defined by the a following claims.

l. The combination with a single phase electric generator having a wound rotor, of a member mounted to rotate with said rotor, a .metallic segment carried by said member, means forming an electrical connection between said segment and rotor winding, and a brush adapted to contact with said seg ment during a certain predetermined angular movement of said member for taking ofl current only during a certain angular'movement of said rotor, said means including mechanism adapted to make and break the circuit tosaid segment when-the speed of said rotor respectively exceeds or falls below a certain predetermined value, for the pur-' pose specified.

2. The combination with an electric generator,'ofa rotor having a single winding thereon, of a member mounted to rotate with said rotor, a metalliosegmcnt carried by said member, a pair of contacts respectively connected with said segment and said rotor winding, means normally urging said contacts apart and adapted to be centrifugally controlled for shifting said contacts into engagement when the speed of said member has reached a predetermined value, and a brush adapted to contact with said segment during a certain predetermined angular movement of said member, for the purpose a predetermlned value, and a brush adapted to contact with said segment during a certain predetermined angular movement of said member, for the purpose specified.

4. The combination with an electric gendetails of the construction shown may be" crater comprising a 'rotor having a single winding thereon, ofa shaft rotated by said rotor,- a disk ioosely mounted on said shaft, a metallic segment carried on the periphery of said disk, a brush engaging with the pe riphery of said disk, an arm fixed to rotate with said shaft, a pair of shoulders spaced t on said disk and adapted to be respec-' engaged by said arm for rotating said with ,said shaft in respectively oppodirections, contacts on aid arm adapted 0 make electrical connection with a part ofsaid shoulders, conductors respectivel connecting the contacts-on said arm wit said rotor winding and said shoulders with said segment,' for the purpose specified.

.5. The combination with an electric enerator comprising a rotor havi'ng a si gle winding} thereon, of ashaft rotatedqby said rotor, a disk loosely mounted on'saidshaft,

- a metallic segment carried on the periphery of said disk, 'a brush normally engaging with,the periphery of said disk, an arm fixed to rotate with said shaft, a pair of shoulders. spaced apart on said disk and adapted to be'respectively engaged by said arm for ro tating said diskwith said shaft in respectn'ely'opposite directions, contacts on said arm adapted to make electrical connection with a partof said shoulders, conductors respectively connecting the contacts on said arm with said rotor winding and said shoul- 6181's with said segment, a pair of contacts carried-by said disk and respectively connected to'said segment and one of said-shouljders, and means normally urging saidcontacts apart and adapted to be oentrifugally controlled for shifting said contacts intoengagement when the speed of said disk has reached a predetermined value for the purpose specified.

6, Theflcombination with an electric generator comprising a rotor having a single winding thereon, of a shaft rotated by'said rotor and having one end of said winding extending through said shaft to the end thereof, a brush normally engaging the end of said winding, a disk loosely mounted on said shaft, a metallic segment carried on the periphery of said disk, a brush engaging the a periphery of said disk, an arm:carried by said shaft, 21 pair of shoulders carried by said disk and electrically connectecbwith said contact, said shouldersbeing adapted to be respectively engaged by said arm for 'shifting said disk in respectively opposite directions, a pair of contacts carried by said arm and adapted to respectively engage saidshoulders, and a conductor connecting said contacts with 'said rotor winding, for the pnrposespecified. I I i 7 The combination 'With an IQlGClJI'lC generatorcomprising a,r0tor having a single winding thereon, of a shaft rotated'by said rotor and having one endof said winding extending through said shaft to the end thereof, a brush normally engaging the end of said winding, a disk loosely mounted on arm for shifting said disk in respectively 0pposite directions, a pair of contacts carried 'by said arm and adapted to respectively engage said sho1'1lders, a conductor connecting'saidconta'ct-s with said rotor winding, a battery, an electric consuming device, a circuit connecting said device with said first brush, a circuit connecting said battery with said second brush, and self'inducti'on means interposed in both of said circuits.

8. The combination with a single phase electric generatorhaving a Wound rotor, of a member, a metallic segment; carried by said member, means adapted to form an electrical connection between said segment and rotor winding When theE. M. F, of said generator exceeds a certain predetermined value, and a brush adapted to contact "with said segment, said member and brush beingicon nected to said rotor to have relative ,tion substantially as and for the purpose specified; I

Signed at Chicago tl11s' 9th day of April.

FRANK WADE. WALTER E. BAUERLE. -Witnesses:" v

PHILIP B. WoonwoR'r v *Enw n PHELPS. 

